Opening and closing device for car doors



Dec. 19, 1933. J. H. SIMONTON 1,940,191

OPENING AND CLOSING DEVICE FOR CAR DOORS Filed Dec. 12, 1929 JEJz'r/zonion SI Patented Dec. 19, 1933 PATENT OFFICE OPENING AND CLOSING DEVICEFOR CAR DOORS John H. Simonton, Brighton, Tenn., assignor of forty-ninepercent to Charles Pressley Simonton and Charles B. Simonton, both of(lovington, Tenn.

Application December 12, 1929 Serial No. 413,601

1 Claim.

The object of this invention is to provide novel means for operating adoor.

In the accompanying drawing: Figure 1 is an elevation showing a deviceconstructed in accordance with the invention;

Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 1. V

In the drawing, the numeral 63 designates any structure on which asliding door may be used. A lower track 64 and an upper track 65 areshown. Striking posts appear at 66 and 67, and retaining fingers on thepost 66 are shown at 68, the door 69 engaging behind the fingers whenthe door is closed. A latch mechanism '70 for the door 69 is provided.The upper edge of the door 69 is slidably engaged with the upper track65. Wheels 71 are located in recesses '72 in the door 69 and arejournaled at '73 on the door. The wheels '71 roll in a groove '74 in thelower track 64. A rack or track 75 is secured in a groove in the upperedge of the lower track 64. An eccentric '76 is journaled in the door69. A shaft 7'7 is mounted to turn in the eccentric '76. The shaft 7'7carries a crank '78, or other operating means, at its outer end. Apinion '79 is secured to the inner end of the shaft '77 and is locatedin a recess 80 formed in the rear side of the door 69. On its forwardend, the eccentric '76 has an enlarged disc-like head 81. The head 81overlaps the outer surface of the door 69 and the pinion '79 overlapsthe inner surface of the door, and, thus, the eccentric 76 is held forrotation in the door. The pinion '79 meshes with the rack or track '75.The head 81 of the eccentric '76 is provided with a handle 82 havingresiliency enough so that it can be engaged in, and disengaged from,seats 83 and 84 formed in a curved keeper plate 85 on the door 69.

When the handle 82 on the eccentric '76 is engaged in the seat 84, thepinion '79 is engaged with the rack or track '75. The shaft 7'7 can beturned by means of the crank '78, and when,

the shaft is turned, the door 69 can be slid to the right or to theleft, because the pinion '79 on the shaft '77 is engaged with the rackor track '75.

In the event that it is desired to shift the pinion '79 out ofengagement with the rack or track '75, so that the door 69 can be slidquickly, by the application of considerable force, this can be done byengaging the handle 82 in the seat 83. When the handle 82 is shiftedfrom the seat 84 to the seat 83, the eccentric '76 is rotated, the shaft7'7 being lifted, and the pinion '77 disengaged from the rack or track'75.

What is claimed is:--

In a device of the class described, a structure having a doorway, a doorfor the doorway, means for mounting the door slidably on said structure,an eccentric journaled in the door, a lever connected to the eccentric,means on the door for holding the lever in adjusted positions, a rackcarried by the said structure, a shaft journaled in the eccentric, and apinion carried by the shaft and meshing with the rack.

JOHN H. SIMONTON.

